Cited by 43Polymer crystallization and propertiesCrystallization and Solubility StudiesMaterial Dynamics and Properties

Crystallization of polyamide confined in sub-micrometer droplets dispersed in a molten polyethylene matrix

Sánchez, Manuel Salmerón, Mathot, Vincent, Poel, Geert Vanden, Groeninckx, Gabriel, Bruls, Willie·2006·Journal of Polymer Science Part B Polymer Physics

Abstract

Abstract The crystallization of submicrometer PA6 droplets dispersed in an ethylene‐1‐octene copolymer matrix, using PE‐g‐MA as a compatibilizer agent, is investigated. This system shows a nonconventional mechanical behavior at high temperatures. Up to ∼100 °C above the final melting temperature of the ethylene‐1‐octene copolymer matrix, the system shows good thermal and mechanical properties including dimensional stability. Because of the dispersed phase morphology of the system, so‐called fractionated/homogeneous crystallization takes place leading to an extra supercooling of PA6: ∼50 °C compared to the bulk PA6 crystallization temperature. Thus—though this is most probably just of interest for small‐scale research—the system can be processed at lowered temperatures while still providing exceptional high‐temperature properties. While the matrix is in the melt state when crystallization of the dispersed PA6 phase occurs, the possibility of matrix induced crystallization is absent, contrary to almost all of the ‘dispersed droplets in a matrix’ systems reported so far. The kinetics of this phenomenon is investigated in detail by DSC: the existence of fractionated/homogeneous crystallization is shown to be related to the lack of active nuclei in the dispersed droplets by means of self‐seeding experiments. The occurrence of extensive cold crystallization of PA6 in the confined environment is studied as is the crystallization kinetics, including the characterization of its time dependences showing its sporadic nature. © 2006 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 44: 815–825, 2006

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Registry

Crossref · 10.1002/polb.20738

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39 of 39 references verified0 citation errors · 0 not checkable

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  • Equation 6 has been applied to describe crystallization kinetics of several immiscible blends with droplet morphology, namely PS/PA6, compatibilized ethylene/1-octene copolymer/PA6, and neat and nucleated PS/iPP blends.

    “In the literature, Equation 6has been applied to describe the crystallization kinetics of several immiscible blends with droplet morphology, namely PS/PA6 [34] , compatibilized ethylene/1-octene copolymer/PA6 [35] , and more recently neat and nucleated PS/iPP blends [7] .”

    From Fractionated crystallization in semicrystalline polymers (2021) · cites this paper as [35]

  • In PA6 blends, the first-order kinetics has been associated with homogeneous nucleation.

    “In the case of PA6 blends [ 34 , 35 ], the firstorder kinetics has been associated with the occurrence of homogeneous nucleation.”

    From Fractionated crystallization in semicrystalline polymers (2021) · cites this paper as [35]

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Authors
Sánchez, M. S., Mathot, V., Poel, G. V., Groeninckx, G., & Bruls, W.
Affiliations
  • KU Leuven (BE)
  • DSM (Netherlands) (NL)
Venue
Journal of Polymer Science Part B Polymer Physics
Publisher
Wiley
Published
2006-01-19
Volume
44
Issue
5
Pages
815-825
ISSN
  • 0887-6266 (ISSN-L)
  • 1099-0488
OpenAlex
W2161367793
Cited by
43
References
40
Citations by year
2024: 1 · 2022: 3 · 2021: 2 · 2020: 3 · 2019: 1 · 2018: 2 · 2017: 5 · 2016: 3 · 2015: 6 · 2014: 6 · 2013: 3 · 2012: 2
FWCI
0.34
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Polymer Science Part B Polymer Physics (publishedVersion)
  • ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (submittedVersion)
Topics
  • Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
  • Physical Sciences › Materials Science › Materials Chemistry › Crystallization and Solubility Studies
  • Physical Sciences › Materials Science › Materials Chemistry › Material Dynamics and Properties
Keywords
polyamide 6, ethylene/1-octene copolymers, confined crystallization, fractional crystallization, homogeneous crystallization, supercooling, cold crystallization, crystallization kinetics, self-seeding, compatibilizer, high-temperature mechanical properties, dimensional stability

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